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02-02-2015
Mathematics

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02-02-2015

Let's say 'x' to the unknown length, since the sides are proportional we can build up a equation like this : [tex]\frac { 11 }{ 8 } =\frac { x }{ 12 } \\ 11\cdot 12=8x\\ 132=8x\\ \frac { 132 }{ 8 } =x\\ x=16.5[/tex]
The answer is A.

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